Picture a circle so large that if you drove around it at 67,000 miles per hour, you'd reach your starting point in a year. Now picture a sphere with that 93,000,000 mile radius. Yes, you can put a star and some planets inside it.
Humans would call it a 'Dyson Sphere,' after Freeman Dyson, the first human crazy enough to dream it up.
The f'sherl-ganni have built several of these spheres, which they call 'buuthandi.' That word is the shortened form of an ancient f'sherl-ganni phrase... Literally: "This was expensive to build."